"I am confident that the Patriarch's visit will contribute to the further development of bilateral relations, will enrich them spiritually, will make long history of relations between Moscow and Havana even brighter," Kamynin told RIA Novosti in an interview.
He said that Cuba had not been chosen "accidentally" for such an historic event, as in recent years Havana "has repeatedly proved" interested in using its resources for the promotion of global peace, as well as stability in the region.
"Undoubtedly, the meeting of Patriarch Kirill and Pope Francis in Havana will work to further strengthen the authority of the Island of Freedom as an important player in the international arena," the ambassador said.
The historic meeting between the two church leaders is scheduled for Friday for 2:15 p.m. local time (19:15 GMT). The meeting will focus on a range of issues, including the persecution of Christians in the Middle East, falling birth rates and euthanasia.